How do I pass the level 7 "will find forward" puzzle?

The objective is to delete all the red outlined characters. It allows only 12 key presses and you enter from the bridge above (on either n, d or the space after "find)". Leaving the puzzle resets it.

Map:

Available keys:

From the game author:

In order to finish this puzzle, you need to collect the 'f', ';' and ',' keys. Note that when you bump into bushes, you sometimes find things - either keyboard shortcuts or people.

You should go back to the Alice text at the beginning of the level (the long one) and go through all the bushes. There are a lot of things to find. It will also make traversing the text a lot easier.

One more thing, if you're still missing one keystroke to finish this text after you collect everything, remember that ';' and ',' repeat the last search within the line, even if it was not performed on the current text.

Hope that helps.

(emphasis mine)

If you type the fx before enter in the text, you only need to use j and ; to solve the puzzle.